EP4353097A1 - Wärmedämmmaterial für aerosolgenerator, herstellungsverfahren dafür und aerosolgenerator mit dem wärmedämmmaterial für aerosolgenerator - Google Patents

Wärmedämmmaterial für aerosolgenerator, herstellungsverfahren dafür und aerosolgenerator mit dem wärmedämmmaterial für aerosolgenerator Download PDF

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Publication number
EP4353097A1
EP4353097A1 EP22849721.0A EP22849721A EP4353097A1 EP 4353097 A1 EP4353097 A1 EP 4353097A1 EP 22849721 A EP22849721 A EP 22849721A EP 4353097 A1 EP4353097 A1 EP 4353097A1
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EP
European Patent Office
Prior art keywords
aerosol generating
heat insulation
insulation material
generating device
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22849721.0A
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English (en)
French (fr)
Inventor
Jong Seong Jeong
Gyoung Min Go
Hyung Jin Bae
Jang Won Seo
Chul Ho Jang
Jin Chul Jung
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KT&G Corp
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KT&G Corp
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Publication date
Priority claimed from KR1020210180850A external-priority patent/KR20230018285A/ko
Application filed by KT&G Corp filed Critical KT&G Corp
Publication of EP4353097A1 publication Critical patent/EP4353097A1/de
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/02—Heaters specially designed for de-icing or protection against icing

Definitions

  • Embodiments relate to a heat insulation material for an aerosol generating device, a method of manufacturing the heat insulation material, and an aerosol generating device including the heat insulation material.
  • Some heating-type aerosol generating devices use heat insulation materials as a way to increase energy efficiency by blocking the heat generated by heaters of the aerosol generating devices from moving to the outside.
  • Heat insulation materials including cerakwool, aerogel, and so on are applied to the general aerosol generating devices. As the heat insulation materials absorb sidestream smoke liquefied inside the aerosol generating devices, thermal conductivity of the heat insulation materials gradually increases, resulting in loss of insulation.
  • embodiments provide a heat insulation material for an aerosol generating device that has an excellent insulation effect and may prevent insulation performance from being reduced due to absorption of sidestream smoke liquefied inside the aerosol generating device, and a method of manufacturing the heat insulation material.
  • a heat insulation material for an aerosol generating device includes a plurality of hollow beads; and a binder configured to bind the plurality of hollow beads together.
  • a method of manufacturing a heat insulation material for an aerosol generating device includes preparing a mixture by mixing a plurality of hollow beads with a binder, manufacturing a molded product by molding the mixture, and drying the molded product to manufacture the heat insulation material.
  • An aerosol generating device includes an accommodation space into which an aerosol generating article is inserted, a heater configured to heat the aerosol generating article accommodated in the accommodation space, and a heat insulation material arranged outside the heater and configured to block heat generated by the heater from moving to an outside of the accommodation space, wherein the heat insulation material includes a plurality of hollow beads and a binder configured to bind the plurality of hollow beads together.
  • a heat insulation material for an aerosol generating device and an aerosol generating device including the same have an excellent insulation effect and may prevent sidestream smoke liquefied inside the aerosol generating device from being absorbed into the heat insulation material, and thus, excellent insulation performance may be maintained continuously.
  • a manufacturing process is simplified and manufacturing costs may be reduced because a high-temperature sintering process is not performed.
  • Effects of the embodiments are not limited to the effects described above and may include all effects that may be inferred from the configuration described below.
  • a heat insulation material for an aerosol generating device includes a plurality of hollow beads; and a binder configured to bind the plurality of hollow beads together.
  • Each of the plurality of hollow beads may include at least one type of ceramic selected from a group including silica, alumina, glass bubble, and perlite.
  • Each of the plurality of hollow beads may have a diameter of 10 ⁇ m to 500 ⁇ m.
  • the binder may include at least one type of material selected from a group including polyimide (PI), polyetheretherketone (PEEK), polyamideimide (PAI), polyphenylsulfite (PPS), polyphenylsulfone (PPSU), polysulfone (PSU), polyethersulfone (PES), polyetherimide (PEI), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF).
  • PI polyimide
  • PEEK polyetheretherketone
  • PAI polyamideimide
  • PPS polyphenylsulfite
  • PPSU polyphenylsulfone
  • PSU polysulfone
  • PES polyethersulfone
  • PEI polyetherimide
  • PVDF polytetrafluoroethylene
  • the binder may occupy 20 % to 50 % of total volume of the heat insulation material.
  • a method of manufacturing a heat insulation material for an aerosol generating device includes preparing a mixture by mixing a plurality of hollow beads with a binder, manufacturing a molded product by molding the mixture, and drying the molded product to manufacture the heat insulation material.
  • Each of the plurality of hollow beads may include at least one type of ceramic selected from a group including silica, alumina, glass bubble, and perlite.
  • Each of the plurality of hollow beads may have a diameter of 10 ⁇ m to 500 ⁇ m.
  • the binder may include at least one type of material selected from a group including polyimide (PI), polyetheretherketone (PEEK), polyamideimide (PAI), polyphenylsulfite (PPS), polyphenylsulfone (PPSU), polysulfone (PSU), polyethersulfone (PES), polyetherimide (PEI), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF).
  • PI polyimide
  • PEEK polyetheretherketone
  • PAI polyamideimide
  • PPS polyphenylsulfite
  • PPSU polyphenylsulfone
  • PSU polysulfone
  • PES polyethersulfone
  • PEI polyetherimide
  • PVDF polytetrafluoroethylene
  • the mixture may include the plurality of hollow beads and the binder in a weight ratio of 0.5 to 5:1.
  • the drying of the molded product may be performed at a temperature of 10 °C to 500°C.
  • An aerosol generating device includes an accommodation space into which an aerosol generating article is inserted, a heater configured to heat the aerosol generating article accommodated in the accommodation space, and a heat insulation material arranged outside the heater and configured to block heat generated by the heater from moving to an outside of the accommodation space, wherein the heat insulation material includes a plurality of hollow beads and a binder configured to bind the plurality of hollow beads together.
  • the heat insulation material may be arranged between the heater and an outer housing of the aerosol generating device, and the heater may be separated from the heat insulation material.
  • the expression, "at least one of a, b, and c,” should be understood as including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
  • an "aerosol generating device” may generate an aerosol by using an aerosol generating material to generate an aerosol that may be inhaled directly into a user's lungs through the user's mouth.
  • an "aerosol generating article” means an article used for smoking.
  • the aerosol generating article may be a general combustion-type cigarette that is ignited and burnt or may be a heating-type cigarette that is heated by an aerosol generating device.
  • the aerosol generating article may also be an article that is used by heating a liquid included in a cartridge.
  • FIG. 1 is a cross-sectional view schematically illustrating an example of a heat insulation material 10 for an aerosol generating device, according to an embodiment.
  • the heat insulation material 10 for an aerosol generating device may include a plurality of hollow beads 11 and a binder 12 that binds the plurality of hollow beads 11 together.
  • the disclosure is not limited thereto, and in addition to the components illustrated in FIG. 1 , other components may be further included in the heat insulation material 10 for the aerosol generating device.
  • FIG. 1 the disclosure is not limited thereto, and in addition to the components illustrated in FIG. 1 , other components may be further included in the heat insulation material 10 for the aerosol generating device.
  • the heat insulation material 10 for an aerosol generating device may have an appropriate shape according to a position of the heat insulation material 10, usage of the heat insulation material 10, the type of a heater of an aerosol generating device, a shape of the heater of the aerosol generating device, so on.
  • the heat insulation material 10 for an aerosol generating device may be selected from a drum shape, a cylindrical shape, a tube shape, a sheet shape, and so on but is not limited thereto.
  • the hollow bead 11 may include a hollow 11a therein.
  • the hollow 1 1a of the hollow bead 11 may include air therein but is not limited thereto, and a vacuum may be formed in the hollow 1 1a of the hollow bead 11.
  • the heat insulation material 10 for an aerosol generating device may have a lower thermal conductivity compared to a case where the plurality of hollow beads 11 have no empty internal space.
  • the heat insulation material 10 may have a lower mass compared to a case where the plurality of hollow beads 11 have no empty internal space.
  • the plurality of hollow beads 11 included in the heat insulation material 10 for an aerosol generating device may be regularly sphere-packed but are not limited thereto.
  • the plurality of hollow beads 11 included in the heat insulation material 10 for an aerosol generating device may also be aggregated irregularly.
  • the plurality of hollow beads 11 may each include ceramic with a low thermal conductivity.
  • the hollow bead 11 may each include at least one type of ceramic selected from a group including silica, alumina, glass bubble, and perlite.
  • the disclosure is not limited thereto, and the hollow bead 11 made of other materials with low thermal conductivity may also be used.
  • a diameter of the hollow bead 11 may be about 10 ⁇ m to about 500 ⁇ m .
  • the diameter of the hollow bead 11 may be about 50 ⁇ m to about 450 ⁇ m, about 100 ⁇ m to about 450 ⁇ m, or about 150 ⁇ m to about 400 ⁇ m. It may be preferable that the diameter of the hollow bead 11 is about 10 ⁇ m or more, and as the diameter of the hollow bead 11 increases, the diameter of the hollow 11a also increases, and thereby insulation performance of the heat insulation material 10 for an aerosol generating device is improved.
  • the diameter of the hollow bead 11 is about 500 ⁇ m or less, and as a size of the hollow bead 11 increases, a curvature of a surface increases, and thereby, it may be difficult to form the heat insulation material 10 with a uniform thickness, and durability of the heat insulation material 10 may be reduced.
  • a diameter distribution of the plurality of hollow beads 11 may have an error range of about 30 % or less compared to an average diameter.
  • the diameter distribution of the plurality of hollow beads 11 may have an error range of about 25 %, about 23 %, or about 21 %. More preferably, the diameter distribution of the plurality of hollow beads 11 may have an error range of about 20 %, about 18 %, about 16 %, about 14 %, about 12 %, or about 10 %. More preferably, the diameter distribution of the plurality of hollow beads 11 may have an error range of about 8 %, about 6 %, or about 5 %.
  • the binder 12 may be arranged between the plurality of hollow beads 11 to bind the plurality of hollow beads 11 together.
  • the binder 12 may be arranged between the plurality of hollow beads 11 and fills the spaces that the hollow beads 11 may not fill, and thus, movement of heat may be blocked. Also, the binder 12 may prevent moisture from coming into contact with surfaces of the plurality of hollow beads 11, and thus, it is possible to prevent performance of the heat insulation material 10 for an aerosol generating device from being reduced.
  • the binder 12 may be made of a material with adhesion and heat resistance.
  • the binder 12 may include at least one type of polymeric material selected from a group including polyimide (PI), polyetheretherketone (PEEK), polyamidoimide (PAI), polyphenylsulfite (PPS), polyphenylsulfone (PPSU), polysulfone (PSU), polyethersulfone (PES), polyetherimide (PEI), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF).
  • PI polyimide
  • PEEK polyetheretherketone
  • PAI polyamidoimide
  • PPS polyphenylsulfite
  • PPSU polyphenylsulfone
  • PSU polysulfone
  • PES polyethersulfone
  • PEI polyetherimide
  • PTFE polytetrafluoroethylene
  • PVDF polyvinylidene fluoride
  • the binder 12 may occupy about 20 % to about 50 % of the total volume of the heat insulation material 10 for an aerosol generating device.
  • the binder 12 may be less than about 20 % of the volume of the heat insulation material 10 for an aerosol generating device, a binding strength between the plurality of hollow beads 11 is reduced, and accordingly, durability of the heat insulation material 10 for an aerosol generating device may be insufficient.
  • the binder 12 exceeds about 50 % of the volume, the binder 12 fills pores between the plurality of hollow beads 11, and accordingly, insulation performance of the heat insulation material 10 for an aerosol generating device may be reduced.
  • the binder 12 may occupy preferably about 25 % to about 30 % of the volume.
  • Mainstream smoke generated by an aerosol generating article is inhaled into a user through the user's mouth.
  • sidestream smoke is generated at an upstream end of the aerosol generating article.
  • the sidestream smoke may not be inhaled by a user and may be liquefied inside an aerosol generating device.
  • the liquefied sidestream smoke may be absorbed into a heat insulation material installed in an aerosol generating device, causing a decrease in insulation performance of a heat insulation material.
  • the heat insulation material 10 for an aerosol generating device according to the embodiment, by arranging the binder 12 between the plurality of hollow beads 11, the liquefied sidestream smoke may be prevented from being absorbed, and thus, performance of the heat insulation material 10 may be maintained continuously.
  • the heat of a heater is effectively concentrated on an aerosol generating article through the heat insulation material 10 of an aerosol generating device, and thus, the taste of smoke of the generated aerosol may be increased, and preheating time of the heater and power consumption may be reduced.
  • a waterproof membrane may be arranged on an outer surface of the heat insulation material 10 for an aerosol generating device.
  • the waterproof membrane may include a glass film, a polyimide coating film, a water-repellent coating film, or a combination thereof.
  • the waterproof membrane is not limited thereto and may include another type of coating film with a waterproof (or moisture-proof) function.
  • FIG. 2 is a flowchart illustrating a method of manufacturing a heat insulation material for an aerosol generating device, according to an embodiment.
  • the method for manufacturing a heat insulation material for an aerosol generating device includes a step of mixing a plurality of hollow beads and a binder to manufacture a mixture (S10), a step of molding the mixture to form a molded product (S20), and drying the molded product to manufacture a heat insulation material for an aerosol generating device (S30).
  • the method for manufacturing a heat insulation material is not limited thereto, and in addition to the steps illustrated in FIG. 2 , other steps may be included in the method of manufacturing a heat insulation material for an aerosol generating device.
  • a mixture may be prepared by mixing a plurality of hollow beads and a binder.
  • the step S10 is not limited thereto, and in addition to the plurality of hollow beads and the binder, additives may be optionally mixed to the mixture.
  • the mixture may include a plurality of hollow beads and a binder mixed at a weight ratio of about 0.5 to about 5:1.
  • the weight ratio of the hollow beads and the binder included in the mixture may be preferably about 0.7 to about 3: 1, or about 0.8 to about 2: 1.
  • the binder fills pores between the plurality of hollow beads, and accordingly, insulation performance of a heat insulation material for an aerosol generating device may be reduced.
  • the plurality of hollow beads included in the mixture exceeds a weight ratio of about 5:1, a binding strength between the plurality of hollow beads may decrease, and thereby durability of a heat insulation material for an aerosol generating device may be insufficient.
  • a plurality of hollow beads and a binder may be mixed preferably at a weight ratio of about 1 to about 1.5:1.
  • a molded product may be produced by molding a mixture.
  • the molded product may match a shape of a heat insulation material for an aerosol generating device to be finally manufactured.
  • a shape of the molded product may be selected from a drum shape, a cylindrical shape, a tube shape, a sheet shape, and so on but is not limited thereto, and an appropriate shape may be selected according to a position of a heat insulation material, the type of a heater of an aerosol generating device, a shape of the heater of the aerosol generating device, and so on.
  • a variety of molding methods known in the art may be applied to the method of molding the mixture, and a molding method of, for example, compression molding, injection molding, extrusion molding, thermoforming, heat melt molding, stacking molding, roll molding, or so on may be applied.
  • a heat insulation material for an aerosol generating device may be manufactured by drying the molded product.
  • a molded product, particularly a binder included in the molded product may be dried, and the temperature for drying may be appropriately changed depending on the type of binder included in the molded product. For example, drying may be made at a temperature of about 10 to about 500 °C. Also, drying may be made at a temperature of about 50 to about 400 °C, about 70 to about 300 °C, or about 90 to about 200 °C.
  • the method of manufacturing a heat insulation material for an aerosol generating device does not include a high-temperature (about 600 to about 1200 °C) sintering process and includes simply a process of drying a binder included in a molded product, and thus, the manufacturing process may be simplified, and manufacturing costs may be reduced.
  • drying the molded product may include a plurality of steps with different drying temperatures and times.
  • a heat insulation material for an aerosol generating device being manufactured may be completely dried, and durability of the heat insulation material may be increased.
  • step S30 includes a step of drying a molded product at a temperature of about 10 to about 120 °C for about 1 minute to about 1 hour, and a step of drying the molded product at a temperature of about 120 °C to about 200 °C for about 1 minute to about 1 hour, and a step of drying the molded product at a temperature of about 200 °C to about 500 °C for about 10 seconds to 30 minutes.
  • step S30 may include a step of drying a molded product at a temperature of about 50 °C to about 100 °C for about 5 minutes to about 30 minutes, a step of drying the molded product at a temperature of about 140 °C to 180 °C for about 5 minutes to about 30 minutes, and a step of drying the molded product at a temperature of about 250 °C to about 350 °C for about 30 seconds to about 3 minutes.
  • FIG. 3 is a cross-sectional view schematically illustrating an example of an aerosol generating device 100 including a heat insulation material 10 for an aerosol generating device, according to an embodiment.
  • the aerosol generating device 100 includes a battery 110, a controller 120, a heater 130, and a heat insulation material 10 for an aerosol generating device.
  • the disclosure is not limited thereto, and in addition to the components illustrated in FIG. 3 , other components may be further included in the aerosol generating device 100.
  • the arrangement of the battery 110, the controller 120, and the heater 130 may be changed.
  • the battery 110 supplies power used to operate the aerosol generating device 100.
  • the battery 110 may supply power such that an alternating current may be applied to the heater 130, and may supply power required to operate the controller 120.
  • the battery 110 may supply power required to operate a display, a sensor, a motor, and so on installed in the aerosol generating device 100.
  • the controller 120 controls all operations of the aerosol generating device 100. Specifically, the controller 120 controls not only operations of the battery 110 and the heater 130 but also operations of other components included in the aerosol generating device 100. Also, the controller 120 may check states of respective components of the aerosol generating device 100 and also determine whether the aerosol generating device 100 is in an operable state.
  • the controller 120 may include at least one processor.
  • the processor may also be implemented by an array of multiple logic gates or may also be implemented by a combination of a general-purpose microprocessor and a memory device storing a program that may be executed by the microprocessor. Also, those skilled in the art may understand that the present embodiment may be implemented by other types of hardware.
  • the heater 130 may be heated by the power supplied from the battery 110.
  • the heater 130 may be in the outside of the aerosol generating article 200. Accordingly, the heated heater 130 may increase the temperature of an aerosol generating material in the aerosol generating article 200.
  • the heater 130 may be an electrical resistance heater.
  • the heater 130 may include an electrically conductive track, and as a current flows through the electrically conductive track, the heater 130 may be heated.
  • the heater 130 is not limited to the example described above, and any heater that may be heated to a desired temperature may be used without limitation.
  • the desired temperature may be preset in the aerosol generating device 100, or a user may set a desired temperature.
  • the heater 130 may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element and may heat the inside or outside of the aerosol generating article 200 according to the shape of the heater.
  • a plurality of heaters 130 may be included in the aerosol generating device 100.
  • the plurality of heaters 130 may be arranged to be inserted into the inside of the aerosol generating article 200 or may be arranged outside the aerosol generating article 200.
  • some of the plurality of heaters 130 may be arranged to be inserted into the inside of the aerosol generating article 200, and the others may be arranged outside the aerosol generating article 200.
  • a shape of the heater 130 is not limited to the shape illustrated in FIG. 3 , and may be formed in various types.
  • the heater 130 may be an induction heating type heater.
  • the heater 130 may include an electrically conductive coil for heating the aerosol generating article 200 by an induction heating method, and the aerosol generating article 200 may include a susceptor that may be heated by the induction heating type heater.
  • the induction heating method may refer to a method of heating a magnetic material by applying an alternating magnetic field of which direction changes periodically to the magnetic material that generates heat by an external magnetic field.
  • the aerosol generating device 100 may emit heat energy from a magnetic material by applying an alternating magnetic field to the magnetic material and may transfer the heat energy emitted from the magnetic material to the aerosol generating article 200.
  • a magnetic material that generates heat by an external magnetic field may be a susceptor.
  • the susceptor may be provided in the aerosol generating device 100 in the form of a piece, flake, or strip.
  • at least a part of the heater 130 arranged inside the aerosol generating device 100 may be formed of a susceptor material.
  • the susceptor material may be formed of a ferromagnetic substance.
  • the susceptor material may include metal or carbon.
  • the susceptor material may include at least one of ferrite, ferromagnetic alloy, stainless steel, and aluminum (Al).
  • the susceptor material may also include at least one of ceramic, such as graphite, molybdenum, silicon carbide, niobium, a nickel alloy, a metal film, or zirconia, a transition metal, such as nickel (Ni) or cobalt (Co), and a metalloid, such as boron (B) or phosphorus (P).
  • the aerosol generating device 100 may accommodate the aerosol generating article 200.
  • An accommodating space 102 for accommodating the aerosol generating article 200 may be formed in the aerosol generating device 100.
  • the heater 130 may be provided in the accommodation space 102 for accommodating the aerosol generating article 200.
  • the heater 130 may have a cylindrical accommodation space 102 for accommodating the aerosol generating article 200 therein. Accordingly, when the aerosol generating article 200 is accommodated in the aerosol generating device 100, the aerosol generating article 200 may be accommodated in the accommodation space 102 of the heater 130.
  • the heater 130 may surround at least a part of an outer surface of the aerosol generating article 200 accommodated in the aerosol generating device 100.
  • the heater 130 may surround a tobacco medium included in the aerosol generating article 200. Accordingly, heat may be transferred from the heater 130 to the tobacco medium more efficiently.
  • the heater 130 may heat the aerosol generating article 200 accommodated in the aerosol generating device 100. As described above, the heater 130 may heat the aerosol generating article 200 by an induction heating method.
  • the heater 130 may include a susceptor material that generates heat by an external magnetic field, and the aerosol generating device 100 may apply an alternating magnetic field to the heater 130.
  • a coil may be included in the aerosol generating device 100.
  • the coil may apply an alternating magnetic field to the heater 130.
  • a magnetic field may be formed inside the coil.
  • an alternating current is applied to the coil, a direction of the magnetic field formed inside the coil may continuously change.
  • the heater 130 is inside the coil and exposed to an alternating magnetic field of which direction changes periodically, the heater 130 may generate heat to heat the aerosol generating article 200 accommodated in the accommodation space 102 of the heater 130.
  • the coil may be wound around an outer surface of the heater 130. Also, the coil may be wound around an inner surface of an outer housing 101 of the aerosol generating device 100.
  • the heater 130 may be placed in an internal space formed by winding a coil. When power is supplied to the coil, the alternating magnetic field generated by the coil may be applied to the heater 130.
  • the coil may extend in a longitudinal direction of the aerosol generating device 100.
  • the coil may extend to an appropriate length along the longitudinal direction.
  • the coil may extend to a length corresponding to the length of the heater 130, or may be extended to a length greater than a length of the heater 130.
  • the coil may be placed in a position suitable for applying an alternating magnetic field to the heater 130.
  • the coil may be placed in a position corresponding to the heater 130.
  • the efficiency with which the alternating magnetic field of the coil is applied to the heater 130 may be increased by the size and arrangement of the coil.
  • the aerosol generating device 100 may control heating of the aerosol generating article 200 by adjusting the power applied to the coil. For example, the aerosol generating device 100 may control the amplitude and frequency of the alternating current applied to the coil.
  • the coil may be implemented by a solenoid.
  • the coil may be a solenoid wound around an inner surface of an external housing 101 of the aerosol generating device 100, and the heater 130 and the aerosol generating article 200 may be placed in an inner space of the solenoid.
  • a material of a conductor constituting the solenoid may be copper (Cu).
  • the solenoid is not limited thereto, and an alloy including any one or at least one of silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel (Ni) may be a material of the conductors constituting the solenoid.
  • the aerosol generating device 100 may further include a vaporizer.
  • the vaporizer may generate an aerosol by heating a liquid composition, and the generated aerosol may pass through the aerosol generating article 200 and be transferred to a user.
  • the aerosol generated by the vaporizer may move along an airflow passage of the aerosol generating device 100, and the airflow passage may be configured such that the aerosol generated by the vaporizer passes through the aerosol generating article 200 and be transferred to a user.
  • the vaporizer may include a liquid storage, a liquid transfer portion, and a heating element but is not limited thereto.
  • the liquid storage, the liquid transfer portion, and the heating element may also be included in the aerosol generating device 100 as independent modules.
  • the liquid storage may store a liquid composition.
  • the liquid composition may be a liquid including a tobacco-containing substance including a volatile tobacco flavor component or may also be a liquid including a non-tobacco substance.
  • the liquid storage may be detachable from or attachable to the vaporizer or may be made integrally with the vaporizer.
  • the liquid compositions may include water, a solvent, ethanol, plant extracts, fragrance, a flavoring agent, or a vitamin mixture.
  • the fragrance may include menthol, peppermint, spearmint oil, or various fruit flavor ingredients but is not limited thereto.
  • the flavoring agent may include ingredients that may provide various types of flavor or savor to a user.
  • the vitamin mixture may be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E but is not limited thereto.
  • the liquid composition may include an aerosol former, such as glycerin or propylene glycol.
  • the liquid transfer portion may transfer a liquid composition of the liquid storage to the heating element.
  • the liquid transfer portion may be a wick, such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic but is not limited thereto.
  • the heating element may heat the liquid composition transferred by the liquid transfer portion.
  • the heating element may be a metal heating wire, a metal heating plate, a ceramic heater, or so on but is not limited thereto.
  • the heating element may be composed of a conductive filament, such as a nichrome wire, and may have a structure that is wound around the liquid transfer portion. The heating element may be heated by an electric current and may transfer heat to the liquid composition in contact with the heating element, and thereby, the liquid composition may be heated. As a result, an aerosol may be generated.
  • the vaporizer may be referred to as a cartomizer or an atomizer but is not limited thereto.
  • FIG. 4 is a cross-sectional view illustrating an example in which the aerosol generating article 200 is inserted into the aerosol generating device 100 according to the embodiment illustrated in FIG. 3 .
  • the heat insulation material 10 may be arranged outside the heater 130 to block the heat generated by the heater 130 from moving to the outside of the accommodation space 102.
  • the heat insulation material 10 may be arranged between the external housing 101 and the heater 130 to prevent heat of the aerosol generating device 100 from being lost.
  • FIG. 4 illustrates an example in which the heat insulation material 10 of a tubular shape is arranged outside the heater 130 of a tubular shape but is not limited thereto. Any heat insulation material that may block the heat generated by the heater 130 from moving to the outside of the accommodation space 102 may be used as the heat insulation material 10 without limitation.
  • the heat insulation material 10 may cause the heat generated by the heater 130 to be concentrated on the aerosol generating article 200, and thereby, heating efficiency of the heater 130 may be increased, and the taste of smoke of the aerosol generating article 200 may be increased. Also, the heat insulation material 10 may reduce the preheating time of the aerosol generating device 100 and reduce power consumption.
  • the heat insulation material 10 may be arranged between the heater 130 and the external housing 101 of the aerosol generating device 100, and the heater 130 may be separated from the heat insulation material 10.
  • An air layer may be formed in a space formed by separating the heater 130 from the heat insulation material 10, and thus, performance of blocking the movement of the heat generated by the heater 130 may be increased.
  • the heater 130 has a cylindrical shape surrounding an outer surface of the aerosol generating article 200, a large area of the heater 130 is adjacent to the external housing 101 of the aerosol generating device 100, and accordingly, the heat generated by the heater 130 is easily transferred to the outside of the aerosol generating device 100, and thereby, a user may feel hot or other components may be adversely affected. Because the heater 130 is separated from the heat insulation material 10, the heat generated by the heater 130 is not directly transferred to the heat insulation material 10, and thus, insulation performance may be further increased.
  • Example 1-1 Manufacture of Heat insulation material for Aerosol Generating Device (Thickness of 0.8 mm, Internal Diameter of 8.5 mm)
  • a mixture was prepared by mixing glass bubbles and a polyimide binder at a weight ratio of 1.2:1.
  • a molded product was manufactured by molding the mixture into a tubular shape with a wall thickness of 0.8 mm and an inner diameter of 8.5 mm. The molded product was first dried at a temperature of 80 °C for 10 minutes, secondly dried at a temperature of 160 °C for 10 minutes, and thirdly dried at a temperature of 300 °C for 1 minute to prepare a heat insulation material for an aerosol generating device.
  • FIGS. 5A to 5C are view illustrating images of the heat insulation material for an aerosol generating device, manufactured in Example 1-1.
  • FIG. 5A is an image of the entire appearance of the heat insulation material for an aerosol generating device, manufactured in Example 1-1
  • FIG. 5B is an image of the heat insulation material for an aerosol generating device viewed from a longitudinal direction
  • FIG. 5C is an image of the heat insulation material for an aerosol generating device viewed from a direction perpendicular to the longitudinal direction.
  • FIG. 5D is an image, which is captured by a microscope, of an outer surface of a heat insulation material for an aerosol generating device, manufactured in Example 1-1.
  • the heat insulation material for an aerosol generating device maintains a tubular shape by a binder bound with a plurality of hollow beads.
  • Example 1-2 Manufacture of Heat insulation material for Aerosol Generating Device (Thickness of 0.8 mm, Internal Diameter of 9.0 mm)
  • a heat insulation material for an aerosol generating device was manufactured in the same manner as Example 1-1, except that a molded product with an inner diameter of 9.0 mm was manufactured.
  • Example 2-1 Manufacture of Heat insulation material for Aerosol Generating Device (Thickness of 1.0 mm, Internal Diameter of 8.1 mm)
  • a heat insulation material for an aerosol generating device was manufactured in the same manner as Example 1-1, except that a molded product with a wall thickness of 1.0 mm and an inner diameter of 8.1 mm was manufactured.
  • Example 2-2 Manufacture of Insulation for Aerosol Generating Device (Thickness of 1.0 mm, Inner Diameter of 8.5 mm)
  • a heat insulation material for an aerosol generating device was manufactured in the same manner as Example 1-1, except that a molded product with a wall thickness of 1.0 mm and an inner diameter of 8.5 mm was manufactured.
  • Example 2-3 Manufacture of Heat insulation material for Aerosol Generating Device (Thickness of 1.0 mm, internal diameter of 9.0 mm)
  • a heat insulation material for an aerosol generating device was manufactured in the same manner as Example 1-1, except that a molded product with a wall thickness of 1.0 mm and an inner diameter of 9.0 mm was manufactured.
  • a film heater (0.700 ⁇ 0.035 ⁇ ) of an electrical resistance tubular type was installed on an inner surface of a heat insulation material for a tube-shaped aerosol generating device which is manufactured according to Example 1-1 to Example 2-3, and a module for measuring an insulation effect was manufactured by installing a SUS pipe on an inner surface of the film heater.
  • a voltage of 2.5 V was applied to the film heater of a tubular type to heat the film heater such that an average saturation temperature increases to 290 °C, and a temperature change of the SUS pipe was measured over time.
  • FIG. 6 is a graph illustrating a result of measuring the temperature change over time, which was measured in Experimental Example 1.
  • the graph of FIG. 6 shows temperature change for each type of heat insulation materials for an aerosol generating device used in the module for measuring insulation effects.
  • a comparative example shows a module in which the heat insulation material for an aerosol generating device is not used.
  • an average saturation temperature was increased by about 30 °C compared to the comparative example. Also, an average saturation temperature of Example 1-1 and Example 1-2 with a wall thickness of 0.8 mm was measured to be about 322 °C, whereas an average saturation temperature of Example 2-1 to Example 2-3 with a wall thickness of 1.0 mm was measured to be about 335 °C.
  • FIG. 7 is a view schematically illustrating an example of the aerosol generating article 200.
  • the aerosol generating article 200 may include a tobacco rod 210 and a filter rod 220.
  • FIG. 7 illustrates that the filter rod 220 includes a single segment.
  • the filter rod 220 is not limited thereto.
  • the filter rod 220 may include a plurality of segments.
  • the filter rod 220 may include a first segment configured to cool an aerosol and a second segment configured to filter a certain component included in the aerosol.
  • the filter rod 220 may further include at least one segment configured to perform other functions.
  • the aerosol generating article 200 may be packaged using at least one wrapper 240.
  • the wrapper 240 may have at least one hole through which external air may be introduced or internal air may be discharged.
  • the aerosol generating article 200 may be packaged by one wrapper 240.
  • the aerosol generating article 200 may be doubly packaged by two or more wrappers 240.
  • the tobacco rod 210 may be packaged by a first wrapper 241, and the filter rod 220 may be packaged by wrappers 242, 243, 244.
  • the entire aerosol generating article 200 may be re-packaged by another single wrapper 245.
  • each segment may be packaged by wrappers 242, 243, 244.
  • the tobacco rod 210 may include an aerosol generating material.
  • the aerosol generating material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but it is not limited thereto.
  • the tobacco rod 210 may include other additives, such as flavors, a wetting agent, and/or organic acid.
  • the tobacco rod 210 may include a flavored liquid, such as menthol or a moisturizer, which is injected to the tobacco rod 210.
  • the tobacco rod 210 may be manufactured in various forms.
  • the tobacco rod 210 may be formed as a sheet or a strand.
  • the tobacco rod 210 may be formed as a pipe tobacco, which is formed of tiny bits cut from a tobacco sheet.
  • the tobacco rod 210 may be surrounded by a heat conductive material.
  • the heat conductive material may be, but is not limited to, a metal foil such as aluminum foil.
  • the heat conductive material surrounding the tobacco rod 210 may uniformly distribute heat transmitted to the tobacco rod 210, and thus, the heat conductivity applied to the tobacco rod may be increased and taste of the tobacco may be improved.
  • the heat conductive material surrounding the tobacco rod 210 may function as a susceptor heated by the induction heater.
  • the tobacco rod 210 may further include an additional susceptor, in addition to the heat conductive material surrounding the tobacco rod 210.
  • the filter rod 220 may include a cellulose acetate filter. Shapes of the filter rod 220 are not limited.
  • the filter rod 220 may include a cylinder-type rod or a tube-type rod having a hollow inside. Also, the filter rod 220 may include a recess-type rod. When the filter rod 220 includes a plurality of segments, at least one of the plurality of segments may have a different shape.
  • the filter rod 220 may be formed to generate flavors. For example, a flavoring liquid may be injected onto the filter rod 220, or an additional fiber coated with a flavoring liquid may be inserted into the filter rod 220.
  • the filter rod 220 may include at least one capsule 230.
  • the capsule 230 may generate a flavor or an aerosol.
  • the capsule 230 may have a configuration in which a liquid containing a flavoring material is wrapped with a film.
  • the capsule 230 may have a spherical or cylindrical shape, but is not limited thereto.
  • the cooling segment may include a polymer material or a biodegradable polymer material.
  • the cooling segment may include pure polylactic acid alone, but the material for forming the cooling segment is not limited thereto.
  • the cooling segment may include a cellulose acetate filter having a plurality of holes.
  • the cooling segment is not limited to the above-described example and is not limited as long as the cooling segment cools the aerosol.
  • FIG. 8 is a view schematically illustrating another example of the aerosol generating article 200.
  • the aerosol generating article 200 may further include a front-end plug 250.
  • the front-end plug 250 may be on one side of the tobacco rod 210 opposite to the filter rod 220.
  • the front-end plug 250 may prevent the tobacco rod 210 from deviating from the aerosol generating article 200 and prevent a liquefied aerosol from flowing into an aerosol generating device from the tobacco rod 210 during smoking.
  • the filter rod 220 may include a first segment 221 and a second segment 222.
  • the first segment 221 may correspond to the first segment of the filter rod 220 in FIG. 7
  • the second segment 222 may correspond to the second segment of the filter rod 220 in FIG. 7 .
  • a diameter and entire length of the aerosol generating article 200 may correspond to the diameter and entire length of the aerosol generating article 200 of FIG. 7 .
  • a length of the front-end plug 250 may be about 7 mm
  • a length of the tobacco rod 210 may be about 15 mm
  • a length of the first segment 221 may be about 12 mm
  • a length of the second segment 222 may be about 14 mm, but the disclosure is not limited thereto.
  • the aerosol generating article 200 may be wrapped by at least one wrapper 240. At least one hole may be formed in the wrapper 240 through which external air flows in or internal gas flows out.
  • the front-end plug 250 may be wrapped by a first wrapper 241
  • the tobacco rod 210 may be wrapped by a second wrapper 242
  • the first segment 221 may be wrapped by a third wrapper 243
  • the second segment 222 may be wrapped by a fourth wrapper 244.
  • the aerosol generating article 200 may be entirely wrapped by a fifth wrapper 245.
  • At least one perforation 246 may be formed in the fifth wrapper 245.
  • the perforation 246 may be formed in a region surrounding the tobacco rod 210 but is not limited thereto.
  • the perforation 246 may serve to transfer the heat generated by a heater to the inside of the tobacco rod 210.
  • the second segment 222 may include at least one capsule 230.
  • the capsule 230 may generate flavor or an aerosol.
  • the capsule 230 may have a structure in which a liquid including fragrance is wrapped by a film.
  • the capsule 230 may have a spherical shape or a cylindrical shape but is not limited thereto.
  • FIG. 9 is a view schematically illustrating another example of the aerosol generating article 200.
  • the aerosol generating article 200 may include a first portion 260, a second portion 270, a third portion 280, and a fourth portion 290.
  • the first portion 260, the second portion 270, the third portion 280, and the fourth portion 290 may respectively include an aerosol generating element, a tobacco element, a cooling element, and a filter element.
  • the first portion 260 may include an aerosol generating material
  • the second portion 270 may include a tobacco material and moisturizer
  • the third portion 280 may cool an airflow passing through the first portion 260 and the second portion 270
  • the fourth portion 290 may include a filter material.
  • the first portion 260, the second portion 270, the third portion 280, and the fourth portion 290 may be sequentially arranged in a longitudinal direction of the aerosol generating article 200.
  • the longitudinal direction of the aerosol generating article 200 may be a direction in which a length of the aerosol generating article 200 extends.
  • the longitudinal direction of the aerosol generating article 200 may be from the first portion 260 toward the fourth portion 290.
  • an aerosol generated by at least one of the first portion 260 and the second portion 270 may form an airflow by sequentially passing through the first portion 260, the second portion 270, the third portion 280, and the fourth part 290, and thus, a smoker may inhale an aerosol from the fourth portion 290.
  • the first portion 260 may include an aerosol generating element.
  • the first portion 260 may also include other additives, such as a flavoring agent, a humectant, and/or organic acid, and may include a flavoring liquid, such as menthol or moisturizer.
  • the aerosol generating element may include at least one of, for example, glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.
  • the first portion 260 may include a crimped sheet, and the aerosol generating element may be included in the first portion 260 in a state of being impregnated into the crimped sheet. Also, other additives, such as a flavoring agent, a humectant, and/or organic acid, and the flavoring liquid may be included in the first portion 260 in a state of being absorbed into the crimped sheet.
  • the crimped sheet may be a sheet composed of a polymer material.
  • the polymer material may include at least one of paper, cellulose acetate, lyocell, and polylactic acid.
  • the crimped sheet may be a paper sheet that does not generate off-flavor due to heat even when heated to a high temperature.
  • the crimped sheet is not limited thereto.
  • the first portion 260 may extend from a distal end of the aerosol generating article 200 to points of about 7 to about 20 mm
  • the second portion 270 may extend from a point where the first portion 260 ends to points of about 7 to about 20 mm.
  • the disclosure is not limited to the numerical range, and the lengths in which the first portion 260 and the second portion 270 extend may be appropriately adjusted within a range that may be easily changed by a person skilled in the art.
  • the second portion 270 may include a tobacco element.
  • the tobacco element may be a certain type of tobacco material.
  • the tobacco element may have a form of tobacco cut leaves, tobacco particle, tobacco sheet, tobacco bead, tobacco granule, tobacco powder, or tobacco extract.
  • the tobacco material may also include at least one type of, for example, tobacco leaves, tobacco vein, puffed tobacco, cut leaves, cut plate leaves, and reconstituted tobacco.
  • the third portion 280 may cool an airflow passing through the first portion 260 and the second portion 270.
  • the third portion 280 may be made of a polymer material or a biodegradable polymer material and may have a cooling function.
  • the third portion 280 may be made of polylactic acid (PLA) fiber but is not limited thereto.
  • the third portion 280 may be made of a cellulose acetate filter in which a plurality of holes are formed.
  • the third portion 280 is not limited to the example described above, and any material that performs a function of cooling an aerosol may be used for the third portion 280 without limitation.
  • the third portion 280 may be a tube filter or branch filter having a hollow.
  • the fourth portion 290 may include a filter material.
  • the fourth portion 290 may be a cellulose acetate filter.
  • a shape of the fourth portion 290 is not limited.
  • the fourth portion 290 may be a cylindrical rod or a tube-type rod having a hollow therein.
  • the fourth portion 290 may be a recess type rod.
  • the fourth portion 290 includes a plurality of segments, at least one of the plurality of segments may have a different shape from others.
  • the fourth portion 290 may generate flavor.
  • a flavoring liquid may be sprayed to the fourth portion 290, or a separate fiber coated with a flavoring liquid may also be inserted into the fourth portion 290.
  • the aerosol generating article 200 may include a wrapper 240 surrounding at least some of the first portion 260 to the fourth portion 290. Also, the aerosol generating article 200 may include the wrapper 240 surrounding all of the first portion 260 to the fourth portion 290. The wrapper 240 may be placed on an outermost side of the aerosol generating article 200 and may be a single wrapper or a combination of multiple wrappers.
  • the first portion 260 of the aerosol generating article 200 may include a crimped corrugated sheet including an aerosol generating material
  • the second portion 270 may include cut plate leaves as a tobacco material and glycerin as a moisturizer
  • the third portion 280 may include a branch pipe
  • the fourth portion 290 may include cellulose acetate fiber but are not limited thereto.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Resistance Heating (AREA)
EP22849721.0A 2021-07-29 2022-06-20 Wärmedämmmaterial für aerosolgenerator, herstellungsverfahren dafür und aerosolgenerator mit dem wärmedämmmaterial für aerosolgenerator Pending EP4353097A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20210100132 2021-07-29
KR1020210180850A KR20230018285A (ko) 2021-07-29 2021-12-16 에어로졸 생성 장치용 단열재, 이의 제조방법 및 상기 에어로졸 생성 장치용 단열재를 포함하는 에어로졸 생성 장치
PCT/KR2022/008710 WO2023008742A1 (ko) 2021-07-29 2022-06-20 에어로졸 생성 장치용 단열재, 이의 제조방법 및 상기 에어로졸 생성 장치용 단열재를 포함하는 에어로졸 생성 장치

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EP22849721.0A Pending EP4353097A1 (de) 2021-07-29 2022-06-20 Wärmedämmmaterial für aerosolgenerator, herstellungsverfahren dafür und aerosolgenerator mit dem wärmedämmmaterial für aerosolgenerator

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JP2013204658A (ja) * 2012-03-28 2013-10-07 Star Hard Kk 真空断熱材およびその製造方法
KR102057216B1 (ko) * 2017-10-30 2019-12-18 주식회사 케이티앤지 에어로졸 생성 장치 및 에어로졸 생성 장치용 히터 조립체
KR102274248B1 (ko) * 2018-04-24 2021-07-07 주식회사 아모센스 궐련형 전자담배장치용 히터조립체 및 이를 포함하는 궐련형 전자담배장치
KR20210073372A (ko) * 2019-12-10 2021-06-18 주식회사 케이티앤지 에어로졸 생성 시스템
KR102381055B1 (ko) * 2019-12-20 2022-03-31 주식회사 이엠텍 미세입자 발생장치의 필름 히터 조립 구조

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